Shock-absorber.



TQ HAND.

SHOOK ABSORBER.

A PPLIOATION FILED mm3, 1913.

Patented Aug. 26, 1913.

lus/Emol? 7mm/50N HA N0 mowers Uiiill-ili PATENT OFFICE.

SHGCK- AEv GILBER.

Specification o Letters Patent.

Patented Ang. 26,1913.

Application med June 8. ''t Serial No. 771,385.

:e whieh :furthe u len" W fiile rinvii' limit 'wi rh zi flexible the "opper l'ornzud ne being prfijez-,led "ture in the ias-e of the Y and ronneeiv `Y`i: he fzvlinder, The 'he eylinder it rape., ore mentioned end mi: the i.: e. element lli eiienfis. "lho op pos-ue end oi he flexible elwzent s paswrd rearwardv owr L; rider iournaled in tle lower. 1nd oi n in" rigidly aliaefhed lo the vehieie bodjf and the exlreniitwv oi "iexible oir-ment l passed through a eenirol :Mirafiori: in lhe forward end oll a vliinirieal firming" Yi) and eonuerwl lo 'the 'forward end of :i spring cylinder l1] movable nilnin s: l Casin. The casing l) of ibo sprinfr eyhnf'ler i e. threaded L'onneelion al its re i end io the forward end of e. rinsed fluid eomaininj.; cylinder il@ lhea: cylinders 1 Y l seeured to the vehlele bo-dv and within iii presided with af l lnid evlinder D.

` ihe rear inner end of the spring cylinder E is ended a spring e, a second Springr f3 being! roied about the rod between its rear piston head f2 and the forward closed end of the Thus when, due lo unerenner-:a of the roadway7 the axle a suddenlyrv :e ers away from the vehiclebody` the k of sneh movement will be, resisted and absorbed b v means of the several springs e', e and f3, the Spring cylinder o being drawn forwardly in the easing I) affainst the tension of both of the springs n ring; j* and is provided with a valve disk which is prevented from seating rearwardly by means of adjustable abutting members f threaded through the piston head in the path of the valve disk, but whirl; is permitted to scat forwardly in the piston head and thus resist the passage elE iuid when the piston head moves rearn'zsrdljv :From this it will be seen that when the rises. the rearward movement of the pision rod F to normal position will be even and comparatively slow, preventing imdue 'wear ol' the parts and promoting an eiastie aetion throughout.

l daim:-m

i., The combination with a vehiele and its :uitzet a shook absorber comprising a pair ol sgiringr cylinders loeaied forwardly and rearwardly ol the axle, the forward spring' f vlinder being rigidly allaehed to the vehile bodv and depending therefrom, a liexible elwnenl. prmided willi a disk movable iu ihe forward spring cylindery a spring!A between the dish and the base of the said forward `ring cylinder, Said flexible elementv being extended beneath and rezu'wardly ol' liu vehiele axle and havingT its rear end ab laehed to the rear spring cylinder, :L easingY which lbe rei." spring); (f vlinder is mounted for movement7 :i lluid oyliudel' :dined willi lhe easing und having' ilsI forward closed end eounwlvd thi-Velo, a, pislon rod niovabl)r uiouoled through lbe 'forward closed end el he duid eilinder and through the rear the, said rear springV (cylinder, :i

disk mounted on the forward end of the piston rod Within the said spring cylinder,

n spring disposed between the said disk und the rear end of the spring cylinder, a disk mounted 0n the rear portion of the piston rod, a spring coiled between said` last-mentioned disk und the forward closed `end of the fluid cylinder, and un aperturei'l 'y of fluid through tbe`piston head when the latter moves renrwurdlyin the cylinder.

2. ln n shock absorber, the combination of it spring cylinder, u casingr in which the spring cylinder is movable, a connect-ing member extending through one end ot' the easing :1nd lniving connection with the :idjai` eent end of the spring' cylinder, a fluid cylinder having one closed end thereof connected to the opposite end of the casing, :i piston rod journaled through the smid closed end of the fluid cylinder und through the opposite end of the spring;V cylinder, disks secured upon the piston rod within the fluid cylinder und within the spring cylinder` springs between the said disks and the adjacent ends of the fluid cylinder and spring cylinder,a11d a valved piston head carried by the piston rod Within the fluid cylinder, the valve of which is arranged to close when the piston head moves in a direction away from the Said spring cylinder.

3. In a shock absorber, the combination of a fluid cylinder having closed ends andv u casing connected to one end of the luid` cylinder, n, piston rod journaled through the connected end'of the fluid cylinder-and extending within the said Czislng at one end` :1 member movable within the casing nud having u flexible connection with the re speetive end of the piston rod,a Spring within the lluid cylinder to resistmovement of the piston rod in one direction, and a vnlved iston head carried by the rod Within the lluid cylinder to resist movement 0f the rod in the opposite direction.

TOWNsoN HAND lVitnesses E'rnnn BARLow, C. l. DICKINSON. 

